Detention Act Article 9

A detention center shall investigate relevant information of a defendant upon receiving the defendant.To implement the aforementioned investigation, a detention center may, within the necessary scope, collect, process, or use the personal information of each defendant, and request relevant authorities (agencies), legal entities, organizations, or individuals to provide relevant information, to which authorities (agencies), legal entities, organizations, or individuals may not refuse without a legitimate reason.Regulations governing the scope, period, procedures, methodology, review, and other requirements for the investigation of defendant information specified in Paragraph 1 shall be prescribed by the Ministry of Justice.
中文原文 羈押法第9條
被告入所時,看守所應調查與被告有關之資料。
為實施前項調查,得於必要範圍內蒐集、處理或利用被告之個人資料,並得請求機關(構)、法人、團體或個人提供相關資料,機關(構)、法人、團體或個人無正當理由不得拒絕。
第一項與被告有關之資料調查之範圍、期間、程序、方法、審議及其他應遵行事項之辦法,由法務部定之。

English translation for reference only; the Chinese text prevails. Not legal advice.